A.图表标题B.图例C.坐标轴D.坐标轴标题
A.数字B.对齐C.填充D.边框E.字体F.保护
A.=A1+B1+C1B.=SUM(A1:C1)C.=SUM(A1+B1+C1)D.=SUM(A1,B1,C1)